Convertible gas and hot-flue water-heater.



G. A. MGGINNIS. CONVERTIBLE GAS AND HOT FLUE WATER HEATER.

APPLICATION FILED MAR. 11. 1912.

1,058,190. Patented Apr. 8, 1913.

ATTE-ST l v 7'0 cfw l/y dflw BY UNITED STATES PATENT orrion. v

CHARLES A. MCGINNIS, OiE CLEVELAND, OHIO.

CONVERTIBLE GAS AND HOT-FLUTE WATER-HEATER.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, CHAnLns A. MGGIN- NIs, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of vOhio, have invented certain new and useful Improvements in Convertible M Gas and Hot-Flue Water-Heaters, of which the following is a specification.

My invention has reference to a convertible gas and hot flue water heater, and the object of the invention is to provide a heater,

or device for heating water which is-adapt-ed tobe placed in the exhaust flue or pipe leading. from a heating furnace, range or stove to the usual eXit in a chimney and heating the water by the products of combustion,

flowing from such a source and in case such source of heat be out off or unavailable at any time to provide for heating the water by a burner specially provided'in the system forsuch conditions. For/example, suppose the heater to be arrangedini-he discharge flue or pipe from the usual furnace in the basement of a dwelling and the heater to be arranged in such flue'or pipe. There comes a time when the furnace maybe running low or is entirely out, as in summer.

,least six months in the year. 7. principle of construction and arrangement In that case there could be no heating of water in the said heater without a special burner, and I have therefore equipped the said draft flue with supplement heating view point in these northern latitudes where'- furnace fires have to be maintained for at The same applies enerally in heating and cooking stoves. bviously, also the two methods of heating may be employed conjointly as well as separately.

Referring now to the accompanying drawings, Figure 1 is a sectional view'of my improved heating device, and Fig. 2 is a bottom view of the damper and cap which I use at the bottom of the main vertical flue.

In the drawing pipe 2 represents a direct flue from a furnace or other heater H and the parallel pipe 3 a working continuation thereof wit-h a probable discharge, into a chimney C. Between the said two horizontal portions 2 and 3 I provide two vertical flue connections, of which the connect on, pipe or flue 4 is the main flue or connection,

and 5 is the bypass or high draft flue, pas-- sage or channel. A water-heating coil. 0 is v Patented Apr. 8, 1913. Application filed March 11, 1912. Serial No. 683,057.

placed lengthwise in the main vertical. flue 4 and in this instance occupies the entire length thereof and is preferably fashioned with somewhat contracted coils in what may be termed its neck a and at the point where the products of combustion first strike the same in their approach through flue 2 so as to facilitate rather than inpede'the draft" at this point. Otherwise the said coil'has the same relative width at both ends and gradu ally widens from its narrowestportion toward both ends, particularly toward the top, where the larger area of pipe thus exposed proportionally increases the heat absorption. At its lower end the said'coil directly exposed to a gas burner b, which is set into a suitable casing 7 removably attached to the bottom of the vertical flue-4 in this instance. and which has a cap 8 at its bottom with an air controlling damper 'd' rotatably mounted thereon by a loose flan'gedunio'n e.,

The terminals or ends of the coil 0 have their pipe connections outside of the flue 4.

and the said coil is designed to beexposed to the products of combustion from the fur-,

nace or heater under normal conditions. Otherwise, as when the fire is started or has died down and requires replenishing with a quick draft the direction of the draftv is temporarily diverted through, the unob-, structed by-pass 5, which also is nearer the furnace. Hence I provide two operatively related draft and shut-ofi' dampers 9 and 10, the damper 9 being located at the bottom of flue 5 and serving to open and close the sameand the damper 10 at the entrance to flue 4 and checking or cutting. oif, the. draft l through the same. Intervening means on the outside comprising arms and a link Z are employed between these dampers to operate the same conjointly, so that when one is. opened the other will be closed, The usual check damper 12 also is used, and 'a combined heat deflector and damper 14 of conical shape is employed in the top of the coil 0- and adapted to be raised and lowered therein according to the draft conditions desired.

This device is suspended 3 in the coil by means of a link 15' and a counter-weighted lever 16 supported on a pivot 17 and having a clamping screw 18 or its equivalent at the top or the post adapted to set the damper 14: at any preferred elevation. The shape of the said damper gradually deflects the heat outward to the coils, so that at least practicall'y all the otherwise waste heat from the furnace is economized and the products of conibustion go ofl to the chimney practically coo Obviously when the gas burner 11 is being used and the furnace'fire is out the damper 10 should be closed so as to confine the heat to the direct flue and about the coil" 0. Damper 14 will be used in this connection also to more or less choke or retard theout flow of heat and thus throw it more certainly into the coil.

Occasionally a situation presents itself where the room is limited in a vertical di rection or the outlet 0 of the furnace is in substantially a horizontal line with the intake opening I. In this event the device may be set at an angle oreven horizontally,

especially if modified in a few particulars. What I claim is: 1. A convertible water heating device having parallel flues at top and bottom and two connecting flues provided each with a separate damper, a source of heat adapted to discharge into either of said connecting flues, a spiral water coil located in the outer of said connecting flues and heating means beneath the same independent of the said products of combustion, in combination with a water heating coil in said flue, a heat deflector of conical shape located point downward in the top of said coil and means outside of said flue adapted to adjust the said deflector vertically to increase or decrease the passage about the same.

3. In heating installations for water heating coils, parallel horizontal dues and two parallelvertical flues connecting said horizontal flues having each a separate damper at its bottom, in combination with a spiral water heating coil arranged lengthwise in the outer of said vertical flues, a conical heat deflector projected into the upper end of said coil and means to raise and lower said deflector. I

In testimony whereof I afix my signature in presence of two witnesses.

CHARLES A.M0GINNIS.

Witnesses:

R. B. Mosnn, WM. LEARY.

source of heat, whereby either or both 'means of heating can be employed to heat 5 

